Study of the Mechanics of the Movement of Loose Lumpy Material in the Loading Zone on the Vibration-Acceleration Section of the Vibration Pneumatic Transport Machine of Cyclic Action

The purpose of this work is the task of researching the vibration effect on the pneumatic transportation of bulk lumpy material in the loading zone on the vibration-acceleration section of the cyclic-action vibration- pneumatic conveying machine. Acceleration section of pneumo-transportation of bulk lumpy material is the minimum length of the transport pipeline, on which the movement of the material takes a steady state. The vibration- acceleration section, in vibro-pneumotransport devices, takes into account the effect of vibration on the material in the loading zone. The analysis of the processes occurring during loading in the vibration-acceleration section of the VPMC will allow to identify optimal technical solutions for further improvement of the machine design. The analysis of the above studies of the mechanics of the movement of lumpy bulk materials in the loading vibration-acceleration section of the vibration-pneumotransport machine of cyclic action shows that the length of the acceleration section is reduced by 3-4 times and is 8-10 m. At the end of the vibration-acceleration section, the material reaches a speed of 25-30 m/s. In order to obtain such speeds in pneumo-transport machines without the influence of vibration, the length of the acceleration section is about 30-40 m. The use of the vibration effect on lumpy bulk material allows you to approximate the location of curved elements of the transport pipeline and thereby expand the possibilities of layout solutions for technological schemes of pneumatic transport of bulk materials. Prospects for further research in this direction include the creation of a new machine design to reduce energy consumption for material transportation.